diff --git a/asteroids_game.py b/asteroids_game.py
index 0ce6218..92d9f0e 100644
--- a/asteroids_game.py
+++ b/asteroids_game.py
@@ -43,7 +43,10 @@ def update(self):
         self.position[1] += self.velocity[1]
         self.lifetime -= 1
         # Fade out effect
-        self.alpha = max(0, self.alpha - (255 / self.lifetime))
+        if self.lifetime > 0:
+            self.alpha = max(0, self.alpha - (255 / self.lifetime))
+        else:
+            self.alpha = 0
 
     def draw(self, surface):
         color_with_alpha = self.color + (self.alpha,)  # Add alpha to color